April 4, 2022

As the U.S. Foods and Drug Administration (Fda) proceeds to assess the risk of affected individual bacterial infections and contamination problems involved with reprocessed urological endoscopes, the Food and drug administration is informed that the current reprocessing guidance for specific urological endoscopes created by Karl Storz are insufficient and are getting transformed updated by Karl Storz. The influenced urological endoscopes incorporate cystoscopes, ureteroscopes, cystourethroscopes and ureterorenoscopes, utilized for viewing and accessing the urinary tract.

In April 2021, the Fda communicated about documented patient infections and feasible contamination challenges with reprocessed urological endoscopes. At the FDA’s ask for, Karl Storz done reprocessing validation testing on a sample of adaptable urological endoscopes and recognized reprocessing failures next large-stage disinfection. Inadequate reprocessing of urological endoscopes could increase the hazard of affected person infection.

On April 1, 2022, Karl Storz initiated a voluntary recall and issued an urgent subject basic safety recognize to instruct users to discontinue all significant-level disinfection procedures for all afflicted urological endoscopes and discontinue liquid chemical sterilization for most of the influenced urological endoscopes. The afflicted urological endoscopes should really be sterilized following just about every use by an ideal sterilization technique recommended in the instructions for use.

The Fda needs to make certain that wellbeing care companies and users are conscious of the change in reprocessing techniques for certain urological endoscopes by Karl Storz. The Food and drug administration will continue on to keep track of experiences of patient bacterial infections or contamination concerns with urological endoscopes, and perform with brands on enough reprocessing approaches and guidance.


  • Evaluation the remember recognize from Karl Storz.
  • Do not use significant-degree disinfection procedures or liquid chemical sterilization to reprocess afflicted urological endoscopes.
  • Sterilize influenced urological endoscopes following each and every use by using sterilization methods advised in the recommendations for use specific to each and every product.
  • Do not use affected urological endoscopes if you do not have obtain to an correct sterilization strategy advised in the instructions for use. Karl Storz will present guidelines for returning the affected endoscopes.
  • Be conscious that Karl Storz will present up to date directions for use for affected urological endoscopes.
  • Do not use ruined equipment or people that have unsuccessful a leak exam, as they could be a likely source of contamination.
  • Create schedules for regimen inspection and typical maintenance as specified in the manufacturer’s guidance.
  • Discuss the benefits and pitfalls affiliated with strategies involving reprocessed urological endoscopes with your patients.

The Food and drug administration tips from the April 2021 letter to well being treatment providers have not modified for reprocessed urological endoscopes by other manufacturers.

Track record

Urological endoscopes are utilized by health and fitness treatment suppliers to provide visualization and operative access for the duration of diagnostic and therapeutic endoscopic methods of the urinary tract (for example: urethra, bladder, ureters, and kidneys) dependent on the supposed use and style of the gadget.

Because 2017, the Fda has evaluated healthcare device stories that describe affected person infections put up-course of action or other attainable contamination issues involved with reprocessed urological endoscopes. There are numerous doable root results in for these issues, like insufficient reprocessing or servicing issues (for illustration, system failed leak tests), reprocessing guidelines in the labeling (including cleaning of accessory components), and machine layout (like certain system parts). Centered on the readily available information, we keep on to imagine the danger of an infection is lower. On the other hand, health and fitness treatment providers and customers should be conscious that affected individual bacterial infections affiliated with reprocessed urological endoscopes can and do manifest.

Food and drug administration Steps

The Fda will proceed to get the job done with Karl Storz to appraise the root cause of reprocessing failures, and to guarantee that an suitable offer of urological endoscopes are accessible for end users and individual care.

The Food and drug administration carries on to operate with other device suppliers to evaluate possible results in and contributing aspects for affected person infections connected with reprocessed urological endoscopes and acquire mitigation actions to decrease the hazard of an infection.

The Fda will proceed to preserve health and fitness care companies and the general public informed if new or further facts results in being out there.

Reporting Issues to the Fda

The Fda encourages wellbeing treatment providers to report any adverse situations or suspected adverse activities knowledgeable with reprocessed urological endoscope units.

Prompt reporting of adverse gatherings can support the Food and drug administration establish and superior have an understanding of the pitfalls associated with healthcare units.

Contact Information and facts

If you have queries about this letter, get in touch with the Division of Industry and Customer Training (DICE):

Previous Letters